When we heard of the male neighbor's arrest, that was a face palm moment for me because it was the very first time I had even considered the idea that the suspect(s) was able to get away so quickly because they might have lived very close to the Closs home.
Not saying I suspect this particular neighbor (although honestly, I'm not ruling him out either), but I am saying that I think it's entirely possible that this crime could have been committed by someone who knew OF the Closses, and lived within a stones throw of the house.